US5626463A - Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape - Google Patents

Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape Download PDF

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Publication number
US5626463A
US5626463A US08/441,605 US44160595A US5626463A US 5626463 A US5626463 A US 5626463A US 44160595 A US44160595 A US 44160595A US 5626463 A US5626463 A US 5626463A
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United States
Prior art keywords
cylinder bore
cylinder
suction
stroke
rotary valve
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Expired - Lifetime
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US08/441,605
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English (en)
Inventor
Kazuya Kimura
Shigeyuki Hidaka
Hiroaki Kayukawa
Toru Takeichi
Chuichi Kawamura
Hideki Mizutani
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Toyota Industries Corp
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Toyoda Jidoshokki Seisakusho KK
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1009—Distribution members
    • F04B27/1018—Cylindrical distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/90—Alloys not otherwise provided for
    • F05C2201/906—Phosphor-bronze alloy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86501—Sequential distributor or collector type

Definitions

  • the present invention relates to an axial multi-piston compressor comprising a drive shaft, a cylinder block having cylinder bores formed therein and surrounding the drive shaft, and a plurality of pistons slidably received in the cylinder bores, respectively, wherein the pistons are successively reciprocated in the cylinder bores by a rotation of the drive shaft so that a suction stroke and a discharge stroke are alternately executed in each of the cylinder bores.
  • Japanese Unexamined Patent Publication (Kokai) No.59(1984)-145378 discloses a swash plate type compressor as representative of an axial multi-piston compressor, which may be incorporated in an air-conditioning system used in a vehicle such as an automobile.
  • This swash plate type compressor comprises: front and rear cylinder blocks axially combined to form a swash plate chamber therebetween, the combined cylinder blocks having a same number of cylinder bores radially formed therein and arranged with respect to the central axis thereof, the cylinder bores of the front cylinder block being aligned and registered with the cylinder bores of the rear cylinder block, respectively, with the swash plate chamber intervening therebetween; double-headed pistons slidably received in the pairs of aligned cylinder bores, respectively; front and rear housings fixed to front and rear end faces of the combined cylinder blocks through the intermediary of front and rear valve plate assemblies, respectively, the front and rear housings each forming a suction chamber and a discharge chamber together with the corresponding one of the front and rear valve plate assemblies; a rotatable drive shaft arranged so as to be axially extended through the front housing and the combined cylinder blocks; and a swash plate securely mounted on the drive shaft within the swash plate chamber and engaging with the double-
  • the front and rear valve plate assemblies in particular have substantially the same construction, in that each comprises: a disc-like member having sets of a suction port and a discharge port each set being able to communicate with the corresponding one of the cylinder bores of the front or rear cylinder block; an inner valve sheet attached to the inner side surface of the disc-like member and having suction reed valve elements formed integrally therein, each of which is arranged so as to open and close the corresponding suction port of the disc-like member; and an outer valve sheet attached to the outer side surface of the disc-like member and having discharge reed valve elements formed integrally therein, each of which is arranged so as to open and close the corresponding discharge port of the disc-like member.
  • Each of the front and rear valve plate assemblies is also provided with suction openings aligned with passages formed in the front or rear cylinder block, respectively, whereby the suction chambers formed by the front and rear housings are in communication with the swash plate chamber into which a fluid or refrigerant is introduced from an evaporator of an air-conditioning system, through a suitable inlet port formed in the combined cylinder blocks.
  • the drive shaft is driven by the engine of a vehicle, such as an automobile, so that the swash plate is rotated within the swash plate chamber, and the rotational movement of the swash plate causes the double-headed pistons to be reciprocated in the pairs of aligned cylinder bores.
  • a suction stroke is executed in one of the aligned cylinder bores and a compression stroke is executed in the other cylinder bore.
  • the suction reed valve element is opened and the discharge reed valve element is closed, whereby the refrigerant is delivered from the suction chamber to the cylinder bore through the suction port.
  • the suction reed valve element concerned is closed and the discharge reed valve element concerned is opened, whereby the delivered refrigerant is compressed and discharged from the cylinder bore into the discharge chamber, through the discharge reed valve element.
  • the refrigerant includes a lubricating oil mist, and the movable parts of the compressor are lubricated with the oil mist during he operation. Also, the oil mist appears on the suction and discharge reed valve elements, and serves as a liquid-phase seal when each of the reed valve elements is closed.
  • the suction reed valve element cannot be immediately opened, i.e., the refrigerant cannot be immediately introduced from the suction chamber into the cylinder bore through the suction reed valve element, because the residual part of the compressed refrigerant has a higher pressure than that of suction chamber, and because and the adhesion force and resilient force of the suction reed valve must be overcome before the refrigerant can be introduced from the suction chamber to the cylinder bore through the suction port.
  • Japanese Unexamined Patent Publication (Kokai) No. 5(1993)-71467 corresponding to U.S. Pat. No. 5,232,349 issued on Aug. 3, 1993, discloses an axial multi-piston compressor constituted such that a theoretical suction volume of the refrigerant can be substantially obtained during the suction stroke.
  • the suction reed valves are substituted for a single suction rotary valve slidably disposed in a central circular space formed in the cylinder block and joined to the drive shaft for rotation thereof.
  • the valve plate assembly is provided with only the discharge reed valve elements and the discharge ports, and the suction reed valve elements and the suction ports are eliminated therefrom.
  • the suction rotary valve is provided with an arcuate groove formed in a peripheral surface thereof, and the arcuate groove is in communication with the suction chamber.
  • the suction rotary valve is further provided with a through passage extending diametrically therethrough.
  • the cylinder block is provided with radial passages formed therein, and each of these radial passages is in communication with the corresponding cylinder bore at an end face thereof on which the discharge port is disposed.
  • the inner ends of the radial passages are opened at an inner wall face of the central circular space of the cylinder block in which the suction rotary valve is slidably received.
  • the cylinder bore concerned is communicated with the diametrically opposed cylinder bore, in which the suction stroke is just finished, through the diametrical through passage formed in the rotary valve, and thus the residual part of the compressed refrigerant escapes from the cylinder bore concerned to the diametrically opposed cylinder bore not governed by the compression stroke. Accordingly, as soon as the cylinder bore concerned is made to communicate with the suction chamber through the radial passage thereof and the arcuate groove of the rotary valve, the refrigerant is introduced from the suction chamber the cylinder bore concerned, due to the escape of the residual part of the compressed refrigerant.
  • a practical suction volume of the refrigerant which can be obtained during the suction stroke, is substantially equal to a theoretical suction volume of the refrigerant, and thus it is possible to substantially realize a theoretical performance from the compressor.
  • an object of the present invention is to provide an axial multi-piston compressor constituted such that a residual part of the compressed fluid escapes from the cylinder bore to bring a practical suction volume of the fluid as close to a theoretical suction volume as possible without a great loss in the efficiency of compression in the compressor.
  • an axial multi-piston compressor comprising: a drive shaft; a cylinder block having cylinder bores formed therein and surrounding the drive shaft; a plurality of pistons slidably received in the respective cylinder bores; a conversion means for converting a rotational movement of the drive shaft into a reciprocation of each piston in the corresponding cylinder bore such that a suction stroke and a discharge stroke are alternately executed therein, a fluid being introduced into the cylinder bore during the suction stroke, and during the compression stroke, the introduced fluid being compressed and discharged from the cylinder bore such that a residual part of the compressed fluid is inevitably left in the cylinder bore when the compression stroke is finished; and a valve means for allowing the residual fluid to escape from the cylinder bore into another cylinder bore governed by the compression stroke.
  • the valve means may comprise a rotary valve joined to the drive shaft to be rotated together therewith and having a groove formed in a peripheral surface thereof, and during the rotation of the rotary valve, a communication between the cylinder bores is established by the groove, whereby the residual part of the compressed fluid can escape from one of the cylinder bores into the other cylinder bore.
  • the groove may be in the form of a closed loop.
  • the rotary valve may include a passage means for introducing the fluid into each of the cylinder bores during the suction stroke.
  • the groove and the passage means are diametrically opposed to each other on the peripheral surface of the rotary valve.
  • FIG. 1 is a longitudinal sectional view showing a wobble plate type compressor according to the present invention
  • FIG. 2 is a cross-sectional view taken along a line II--II of FIG. 1;
  • FIG. 3 is a development view showing an outer wall surface of a suction rotary valve and an inner wall surface of a central space formed in a cylinder block of the compressor and slidably receiving the suction rotary valve;
  • FIG. 4 is a development view similar to FIG. 3, in which the suction rotary valve is rotated from an angular position of FIG. 3;
  • FIG. 5 is a development view similar to FIG. 3, in which the suction rotary valve is further rotated from an angular position of FIG. 4;
  • FIG. 6 is a development view similar to FIG. 3, in which the suction rotary valve is rotated over an angle of 180 degrees measured from the angular position of FIG. 3;
  • FIG. 7 is a development view similar to FIG. 3, in which the suction rotary valve is rotated over an angle of 60 degrees measured from the angular position of FIG. 6;
  • FIG. 8 is a graph showing a variation of pressure in a compression chamber and a variation of volume thereof when rotating the suction rotary valve over an angle of 360 degrees.
  • FIG. 9 is a graph showing an operation cycle performed in each compression chamber of the compressor.
  • FIG. 1 shows a wobble-plate-type compressor as an axial multi-piston compressor in which the present invention is embodied, and which may be used in an air-conditioning system (not shown) for a vehicle such as an automobile.
  • the compressor comprises a cylinder block 10, front and rear housings 12 and 14 securely and hermetically joined to the cylinder block 10 at front and rear end faces thereof through the intermediary of O-ring rings 16 and 18, respectively.
  • the cylinder block 10 and the housings 12 and 14 are assembled as an integrated unit by six screws 19 (see FIG. 2).
  • FIG. 2 shows a wobble-plate-type compressor as an axial multi-piston compressor in which the present invention is embodied, and which may be used in an air-conditioning system (not shown) for a vehicle such as an automobile.
  • the compressor comprises a cylinder block 10, front and rear housings 12 and 14 securely and hermetically joined to the cylinder block 10 at front and rear end faces thereof through the intermediary of O-ring rings 16 and 18, respectively.
  • the cylinder block 10 has six cylinder bores 20A, 20B, 20C, 20D, 20E, and 20F formed radially and circumferentially therein and spaced from each other at regular intervals, and each of the cylinder bores slidably receives a piston 22.
  • the front housing 12 has a crank chamber 24 defined therewithin, and the rear housing 14 has a central suction chamber 26 and an annular discharge chamber 28 defined therewithin and partitioned by an annular wall portion 14a integrally projected from an inner wall of the rear housing 14.
  • the suction chamber 26 and the discharge chamber 28 are in communication with an evaporator and a condenser of the air-conditioning system, respectively, so that a fluid or refrigerant is supplied from the evaporator to the suction chamber 26 and a compressed refrigerant is delivered from the discharge chamber 28 to the condenser.
  • a valve plate assembly 30 is disposed between the rear end face of the cylinder block 10 and the rear housing 14, and defines compression chambers 32A, 32B, 32C, 32D, 32E, and 32F together with the heads of the pistons 22 slidably received in the cylinder bores 20A to 20F, as shown in FIG. 2.
  • the valve plate assembly 30 includes a disc-like plate member 34, a reed valve sheet 36 applied to an outer side surface of the disc-like plate member 34, and a retainer plate member 38 applied to an outer side surface of the reed valve sheet 36.
  • the disc-like member 34 may be made of a suitable metal material such as steel, and has six discharge ports 40 formed radially and circumferentially therein and spaced from each other at regular intervals, so that each of the discharge ports 40 is encompassed within an end opening area of the corresponding one of the cylinder bores 20A to 20F. Note, in FIG. 2, each of the discharge ports 40 is illustrated by a phantom line.
  • the reed valve sheet 36 may be made of spring steel, phosphor bronze, or the like, and has six discharge reed valve elements 42 formed integrally therewith and arranged radially and circumferentially to be in register with the discharge ports 40, respectively, whereby each of the discharge reed valve elements 42 can be moved so as to open and close the corresponding discharge port 40, due to a resilient property thereof.
  • the retainer plate member 38 may be made of a suitable metal material such as steel, and is preferably coated with a very thin rubber layer.
  • the retainer plate member 38 has six retainer elements 44 formed integrally therewith and arranged radially and circumferentially to be in register with the discharge reed valve elements 42, respectively. Each of the retainer elements 44 provides a sloped bearing surface for the corresponding one of the discharge reed valve elements 42, so that each discharge reed valve element 42 is opened only by a given angle defined by the sloped bearing surface of the retainer element 44.
  • a drive shaft 46 extends within the front housing 12 so that a rotational axis thereof matches a longitudinal axis of the front housing 12, and one end of the drive shaft 46 is projected outside from an opening formed in a neck portion 12a of the front housing 10 and is operatively connected to a prime mover of the vehicle for rotation of the drive shaft 46.
  • the drive shaft 46 is rotatably supported by a first radial bearing 48 provided in the opening of the neck portion 12a and by a second radial bearing 50 provided in a central passage formed in the cylinder block 10.
  • a rotary seal unit 52 is provided in the opening of the neck portion 12a to seal the crank chamber 24 from the outside.
  • a drive plate member 54 is mounted on the drive shaft 46 so as to be rotated together therewith, and a thrust bearing 56 is disposed between the drive plate member 54 and an inner side wall portion of the front housing 12. Also, a sleeve member 58 is slidably mounted on the drive shaft 46, and has a pair of pin elements 60 projected diametrically therefrom. Note, in FIG. 1, only one pin element 60 is illustrated by a broken line.
  • a cam plate member 62 is swingably supported by the pair of pin elements 60. As apparent from FIG. 1, the cam plate member 62 is in an annular form, and the drive shaft 46 extends through a central opening of the annular cam plate member 62.
  • the drive plate member 54 is provided with an extension 54a having an elongated guide slot 54b formed therein, and the cam plate member 62 is provided with a bracket portion 62a projected integrally therefrom and having a guide pin element 62b received in the guide slot 54b, whereby the cam plate member 62 can be rotated together with the drive plate member 54, and is swingable about the pair of pin elements 60.
  • a wobble plate member 64 is slidably mounted on an annular portion 66 projected integrally from the cam plate member 62, and a thrust bearing 68 is disposed between the cam plate member 62 and the wobble plate member 64.
  • the sleeve member 58 is always resiliently pressed against the drive plate member 54 by a compressed coil spring 70 mounted on the drive shaft 46 and constrained between the sleeve member 58 and a ring element 72 securely fixed on the drive shaft 46, and thus the sleeve member 58 is resiliently biased against the drive plate member 54.
  • the wobble plate member 64 is operatively connected to the pistons 22 through the intermediary of six connecting rod 74 having spherical shoe elements 74a and 74b formed at ends thereof, and the spherical shoe elements 74a and 74b of each connecting rod 74 are slidably received in spherical recesses formed in the wobble plate member 64 and the corresponding piston 22, respectively.
  • crank chamber 24 can be in communication with the suction chamber 26 and/or the discharge chamber through a suitable control valve (not shown) so that a pressure within the crank chamber 24 is variable, whereby the stroke length of the pistons 22 is adjustable.
  • a rotary valve 76 is slidably disposed in a circular space 78 formed by a part of the central passage of the cylinder block 10.
  • the rotary valve 76 is coupled to the inner end of the drive shaft 46 so as to be rotated together therewith.
  • the rotary valve 76 is provided with a central hole 80 formed in one end face thereof and having a key slot 80a extending radially therefrom, and the drive shaft 46 is provided with a stub element 82 projected from the inner end face thereof and having a key 82a extending radially therefrom.
  • a reference numeral 84 indicates a thrust bearing for the rotary valve 76, which is disposed in a central recess formed in the annular wall portion 14a of the rear housing 14.
  • the rotary valve 76 is also provided with a central hole 86 formed therein, and the central hole 86 is opened at the other end face of the rotary valve 76 so as to be in communication with the suction chamber 26 through a central passage of the thrust bearing 84.
  • a sector-shaped groove 88 is formed in the rotary valve 76, and is in communication with the central hole 86.
  • the sector-shaped groove 88 is in communication with the suction chamber 26 through the central hole 86.
  • the rotary valve 76 is further provided with a closed loop groove 90 formed in a peripheral surface thereof. As is apparent from FIG.
  • the closed loop groove 90 includes two parallel arcuate groove portions 90a and 90b coextended circumferentially along the outer peripheral surface of the rotary valve 76, and two side groove portions 90c and 90d connected between two sets of ends of the parallel arcuate groove portions 92a and 92b.
  • the cylinder block 10 is provided with six radial passages 94A, 94B, 94C, 94D, 94E, and 94F formed therein and extended from the compression chambers 32A to 32F to the circular space 78 of the cylinder block 10, respectively.
  • an inner peripheral wall surface of the circular space 78 is also shown in a development view to illustrate a relationship between the rotary valve 76 and the arrangement of the radial passages 94A, 94B, 94C, 94D, 94E, and 94F.
  • the refrigerant is introduced from the suction chamber 26 into the corresponding compression chamber 32A, 32B, 32C, 32D, 32E, 32F through the central hole 86, the sector-shaped groove 88, and the corresponding radial passage 94A, 94B, 94C, 94D, 94E, 94F.
  • the refrigerant is compressed in the corresponding compression chamber 32A, 32B, 32C, 32D, 32E, 32F, and is then discharged therefrom into the discharge chamber 28 through the corresponding reed valve 42.
  • the rotary valve 76 is at an angular position, as shown in FIG. 3, with respect to the six radial passages 94A, 94B, 94C, 94D, 94E, and 94F.
  • the compression stroke is just finished so that a part of the compressed refrigerant is inevitably left in a small volume of the compression chamber 32A defined by the piston head (22) and the valve plate assembly 30.
  • the piston 22 reaches bottom dead center, and thus the suction stroke is just finished.
  • each of the cylinder bores 20B and 20C or compression chambers 32B and 32C is subjected to the compression stroke, and each of the cylinder bores 20E and.20F or compression chambers 32E and 32F is subjected to the suction stroke.
  • the side groove portion 90c of the closed loop groove 90 bounds on the opening of the radial passage 94A, and the side groove portion 90d of the closed loop groove 90 partially lies over the opening of the radial passage 94C so that the compression chamber 32C communicates with the closed loop groove 90.
  • the pressure thereof is rapidly increased, whereas, in the compression chamber 94A governed by the suction stroke, the pressure thereof is rapidly lowered. Accordingly, the communication must be cut off between the compression chambers 94A and 94C at a suitable timing, before the return of the refrigerant from the compression chamber 94C to the compression chamber 94A can be prevented.
  • the sector-shaped groove 88 communicates with the radial passage 94A, and thus the refrigerant can be immediately introduced from the suction chamber 26 into the compression chamber 32A due to the escape of the residual refrigerant therefrom.
  • FIG. 8 is a graph showing a variation in pressure in the compression chamber 32A, represented by a curve P, and a variation in volume of the compression chamber 32A, represented by a curve V, when rotating the rotary valve 76 over an angle of 360 degrees.
  • a rotational angle of the rotary valve 76 is zero when the piston 22 is at top dead center in the cylinder bore 20A (FIG. 3).
  • reference PT 1 indicates a period of time over which the communication is maintained between the compression chamber 32A and the closed loop groove 90
  • reference PTc indicates a period of time over which the radial passage 94C communicates with the side groove portion 90d of the closed loop groove 90.
  • the compression chambers 32A and 32C communicate with each other (FIG. 4), and thus the residual part of the compressed refrigerant is fed from the compression chamber 32A to the compression chamber 32C, so that the pressure P is rapidly lowered.
  • reference PT 2 indicates a period of time over which the communication is maintained between the compression chamber 32A and the suction chamber 26, and the suction stroke is executed over the period of time PT 2 .
  • the pressure P is kept constant, and the volume V of the compression chamber 94A reaches a maximum peak at the end of the suction stroke. After suction stroke is finished, i.e., after the compression stroke is initiated, the pressure is gradually increased.
  • reference PT indicates a period of time over which the communication is maintained between the compression chamber 32A and the closed loop groove 90
  • reference PT indicates a period of time over which the radial passage 94E communicates with the side groove portion 90c of the closed loop groove 90.
  • the pressure P is rapidly increased in response to a decrease of the volume V of the compression chamber 32A, shown in the graph of FIG. 8.
  • the discharge reed valve is opened so that the compressed refrigerant is discharged from the compression chamber 32A into the discharge chamber 28, and thus the maximum value of the pressure P is kept at constant.
  • FIG. 9 shows an operation cycle performed in the compression chambers 32A, 32B, 32C, 32D, 32E, 32F.
  • references A and B indicate top dead center and bottom dead center.
  • the suction stroke is executed in a section indicated by A ⁇ B
  • the compression stroke is executed in a section indicated by B ⁇ A.
  • the compression stroke is executed along a broken line shown in FIG. 9.
  • the efficiency of the compressor according to the present invention is improved by a differential indicated by a hatched area in FIG. 9.
  • the present invention is applied to a wobble plate type compressor as an axial multi-piston compressor, the present invention may be embodied in another type axial multi-piston compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US08/441,605 1992-10-05 1995-05-15 Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape Expired - Lifetime US5626463A (en)

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US08/441,605 US5626463A (en) 1992-10-05 1995-05-15 Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape

Applications Claiming Priority (4)

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JP4-266187 1992-10-05
JP26618792A JP3080278B2 (ja) 1992-10-05 1992-10-05 往復動型圧縮機
US13145293A 1993-10-04 1993-10-04
US08/441,605 US5626463A (en) 1992-10-05 1995-05-15 Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape

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US13145293A Continuation 1992-10-05 1993-10-04

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JP (1) JP3080278B2 (de)
KR (1) KR970001135B1 (de)
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TW (1) TW299002U (de)

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US6439857B1 (en) 2001-03-12 2002-08-27 Haldex Brake Corporation Axial piston compressor
US20030095874A1 (en) * 2001-11-22 2003-05-22 Shinji Tagami Swash plate for swash plate-type variable displacement compressor
US20030095873A1 (en) * 2001-11-21 2003-05-22 Tomoji Tarutani Refrigeration suction mechanism for a piston type compressor and a piston type compressor
US20030108436A1 (en) * 2001-12-06 2003-06-12 Noriyuki Shintoku Lubricating structure in fixed displacement piston type compressor
US20030113211A1 (en) * 2001-11-12 2003-06-19 Takahiro Moroi Piston type compressor
US20040131476A1 (en) * 2001-05-23 2004-07-08 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Compressor
US20040179951A1 (en) * 2003-02-07 2004-09-16 Masaki Ota Piston type compressor
US20040213678A1 (en) * 2003-04-24 2004-10-28 Koelzer Robert L. Compressor with swash plate housing inlet port
US20050061143A1 (en) * 2003-01-28 2005-03-24 Koelzer Robert L. Modular swash plate compressor
US6883416B2 (en) 2003-01-28 2005-04-26 Haldex Brake Corporation Swash plate containment assembly
EP1314889A3 (de) * 2001-11-22 2005-06-08 Kabushiki Kaisha Toyota Jidoshokki Ventil für einen Taumelscheibenverdichter
US20050180861A1 (en) * 2003-12-01 2005-08-18 Honda Motor Co., Ltd. Rotating fluid machine
US20050207905A1 (en) * 2004-03-18 2005-09-22 Koelzer Robert L Fixed angle swash plate compressor
EP1584819A1 (de) * 2002-12-26 2005-10-12 Zexel Valeo Climate Control Corporation Verdichter
US20060002801A1 (en) * 2004-07-01 2006-01-05 Kosco John S Rocker compressor mechanism
US20060053830A1 (en) * 2004-09-13 2006-03-16 Adams Andrew W Reciprocating axial displacement device
US20080193304A1 (en) * 2005-07-25 2008-08-14 Akinobu Kanai Piston Type Compressor
US20090097999A1 (en) * 2007-10-15 2009-04-16 Mitsuyo Ishikawa Suction structure in double-headed piston type compressor
US8794941B2 (en) 2010-08-30 2014-08-05 Oscomp Systems Inc. Compressor with liquid injection cooling
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US20160208787A1 (en) * 2015-01-21 2016-07-21 Kabushiki Kaisha Toyota Jidoshokki Double- headed piston type swash plate compressor
US9470224B2 (en) 2012-11-02 2016-10-18 Kabushiki Kaisha Toyota Jidoshokki Piston type compressor
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JPH06249144A (ja) * 1993-02-23 1994-09-06 Toyota Autom Loom Works Ltd ピストン式圧縮機における冷媒ガス吸入構造
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EP1314888A3 (de) * 2001-11-21 2005-09-07 Kabushiki Kaisha Toyota Jidoshokki Drehventil für Taumelscheibenverdichter
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EP1314889A3 (de) * 2001-11-22 2005-06-08 Kabushiki Kaisha Toyota Jidoshokki Ventil für einen Taumelscheibenverdichter
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US20060110264A1 (en) * 2002-12-26 2006-05-25 Sakae Hayashi Compressor
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EP1584819A4 (de) * 2002-12-26 2006-08-23 Zexel Valeo Climate Contr Corp Verdichter
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EP1655489A1 (de) 2004-11-05 2006-05-10 Haldex Brake Corporation Modularer Taumelscheibenverdichter
US20080193304A1 (en) * 2005-07-25 2008-08-14 Akinobu Kanai Piston Type Compressor
US20090097999A1 (en) * 2007-10-15 2009-04-16 Mitsuyo Ishikawa Suction structure in double-headed piston type compressor
US8794941B2 (en) 2010-08-30 2014-08-05 Oscomp Systems Inc. Compressor with liquid injection cooling
US9267504B2 (en) 2010-08-30 2016-02-23 Hicor Technologies, Inc. Compressor with liquid injection cooling
US9719514B2 (en) 2010-08-30 2017-08-01 Hicor Technologies, Inc. Compressor
US9856878B2 (en) 2010-08-30 2018-01-02 Hicor Technologies, Inc. Compressor with liquid injection cooling
US10962012B2 (en) 2010-08-30 2021-03-30 Hicor Technologies, Inc. Compressor with liquid injection cooling
US9470224B2 (en) 2012-11-02 2016-10-18 Kabushiki Kaisha Toyota Jidoshokki Piston type compressor
US9759206B2 (en) 2013-09-27 2017-09-12 Kabushiki Kaisha Toyota Jidoshokki Swash plate type variable displacement compressor
US20160348672A1 (en) * 2014-02-07 2016-12-01 Torvec, Inc. Axial piston device
US20160208787A1 (en) * 2015-01-21 2016-07-21 Kabushiki Kaisha Toyota Jidoshokki Double- headed piston type swash plate compressor

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JP3080278B2 (ja) 2000-08-21
KR940009525A (ko) 1994-05-20
DE4333633A1 (de) 1994-04-07
JPH06117365A (ja) 1994-04-26
TW299002U (en) 1997-02-21
KR970001135B1 (ko) 1997-01-29

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